Acetylene generator



1 Sept. 14, 1926.

A. MESSER 'AGETYLENE GENERATOR Filed August 29, 1921 Patented Sept. 14, 1926.

UNITED STATES ADOLF MESSER, OF FRANKFORT-ON-THE-MAIN, GERMANY.

ACETYLENE GENERATOR.

Application filed August'29, 1921, Serial No. 496,765, and in Germany September 12, 1916.

(GRANTED UNDER THE PROVISIONS OF THE ACT OF MARCH 3, 1921, 41 STAT. L, 1313.)

In acetylene generators with a drop lever released through the intermediary of an ascending [and descending collector bell and operating the feeding device the required part of the feeding material is made to drop into the generating water all at the same time. As this quantity of carbide is rather considerable in large acetylene generators there will be produced suddenly higher pressures in the generator than the admissible pressure whereby disturbances of service might be caused. lVith a view to avoid this inconvenience it has already been proposed to drive the feeding devices for large generators by electric motors, transmissions or the like, having devices for the throwing in and out of gear which are operated from the descending and ascending collector bell.

This invention has for its object to simplify such devices by using a regulating device without individual movement which regulates the sudden dropping of the carbide to be decomposed at every period in such a manner that it acts gradually within a time limit which can be accurately determined. The principal characteristic feature of the improved speed regulating device consists in a braking device opposing the sudden release of feeding material, for instance in a brake which controls the supply of carbide.

In order that the invention may be clearly understood, I shall proceed to describe the same with regard to the only figure of the accompanying drawing.

In the top part of a gas generator at a feed drum 9 is fixed upon a shaft 1 rev'olubly mounted in the walls of said top part. The feed drum is divided into cells and fed with carbide from a hopper f. The pointed end of a weighted lever b engages with a ratchet m fixed upon said shaft 1', the lever b resting on the one hand upon a support 70 arranged upon the wall of the generator a and on the other hand upon a collar 71 of a cable 8 which is attached to the collector bell of the gas holder not shown on the drawing. Upon shaft r a toothed wheel 0?. is keyed which cooperates with a smaller toothed wheel n which serves as crank disk for the connectmg rod drive 0, p of a pneumatic or hydraulic brake e, the valvesd of which permit of adjusting the degree of compression and consequently of the revolving speed.

The device operates as follows ,When the collector bell of the gasholder, not shown on thedrawing, descends it pulls the cable 8 the collar 2' of which makes the weighted lever b pivot around its support 70.- The lever engaging with the ratchet m revolves this ratchet'and through the same the feed drum 9. At the same time the toothed wheel 11. keyed upon the shaftr of the drum is rotated and drives the toothed wheel 11, so that the connecting rod drive 0, p is operated. The angle formed by the rods 0 and 0 becomes greater. The piston rod is pulled out and the air in cylinder e is compressed. The revolving speed of driving gear m, n, n is thus braked and the feed drum can revolve only slowly under the action of the carbide contained in it. When the collector bell of the gas holder ascends again the cable gets slack, lever b is lowered but does not oper ate its ratchet m held by a pawl, the pressure of the air in cylinder 6 being equilibrated by the outflow through the valves cl.

The speed produced by the transmission of the driving gear a, n overcomes the influence of the dead point position so that the braking action is always ensured.

I claim:

A speed regulating device for carbide feeders for acetylene generators comprising in combination with a carbide feeding hopper a drum beneath said hopper, a weighted lever adapted to be raised from a device raised and lowered by the gas pressure in the gas reservoir, a ratchet upon the shaft of said drum driven by said weightedlever, abrake cylinder outside the generator, a piston 1n saidbrake cylinder and'an intermediary gear between the drum and the piston of the brake cylinder designed to regulate the revolving speed of the drum.

In testimony whereof I affiX my signature.

ADOLF MESSER. 

